LAN9253T/R4X Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The LAN9253T/R4X is an EtherCAT slave controller IC from Microchip featuring a 64-pin QFN package with SPI and I2C host interfaces and a 25 MHz clock. It includes boundary scan support and NRZI data encoding for robust industrial Ethernet connectivity. Designed for servo drives, industrial robots, motion control modules, and factory automation nodes requiring real-time EtherCAT communication.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 64
- Lifecycle
- ACTIVE
- Datasheet
- LAN9253T/R4X Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.7600(MOQ 100)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- EtherCAT slave controller with 25 MHz maximum clock
- SPI and I2C host interface compatibility
- 16-bit address bus with boundary scan (JTAG) support
- NRZI data encoding for industrial Ethernet robustness
- Compact 64-pin QFN package for dense PCB layouts
- Synchronous byte communication protocol support
Applications
The LAN9253T/R4X enables real-time EtherCAT fieldbus connectivity in industrial automation equipment including servo motor drives, distributed I/O modules, and robotic joint controllers. Its SPI host interface allows direct connection to virtually any microcontroller or DSP without requiring an external PHY, reducing BOM complexity in motion control designs. The QFN-64 package and factory-in 2020 introduction date make it a modern choice for new EtherCAT slave node designs targeting IEC 61158 compliance.
Specifications
| Manufacturer Package Code | QFN-64 |
| Factory Lead Time | 15Weeks |
| Date Of Intro | 2020-08-18 |
| YTEOL | 19 |
| Address Bus Width | 16 |
| Boundary Scan | YES |
| Bus Compatibility | I2C; SPI |
| Clock Frequency-Max | 25MHz |
| Communication Protocol | SYNC, BYTE |
| Data Encoding/Decoding Method | NRZI |
| Data Transfer Rate-Max | 12.5MBps |
| External Data Bus Width | 16 |
| JESD-30 Code | S-XQCC-N64 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of Serial I/Os | 4 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC64,.35SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Voltage-Max | 1.26V |
| Supply Voltage-Min | 1.14V |
| Supply Voltage-Nom | 1.2V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | SERIAL IO/COMMUNICATION CONTROLLER, LAN |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Taiwan, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LAN9253T/R4X:
Frequently Asked Questions
What host interface options does the LAN9253T/R4X support, and which is better suited for a low-pin-count microcontroller?
The LAN9253T/R4X supports both SPI and I2C host interfaces, operating at up to 25 MHz. For a low-pin-count microcontroller with limited GPIO, the I2C interface requires only 2 wires for full communication, whereas SPI uses 4 signals but offers higher throughput for real-time EtherCAT data exchange. In demanding motion control applications with tight cycle times under 1 ms, SPI at 25 MHz is the preferred choice over I2C.
How does the LAN9253T/R4X's boundary scan support simplify PCB validation during EtherCAT node production testing?
Boundary scan (JTAG) support in the LAN9253T/R4X allows automated in-circuit testing equipment to verify all 64 pins for solder opens, shorts, and connectivity without applying full system power, reducing test fixture complexity. For a production run of 1000 EtherCAT slave boards, boundary scan testing can catch assembly defects in under 30 seconds per board compared to 5 to 10 minutes for manual probe testing, improving throughput and reducing rework cost.
When is the LAN9253T/R4X a better fit for an EtherCAT slave design than a discrete solution using a separate PHY and FPGA?
The LAN9253T/R4X integrates the EtherCAT slave controller logic, PHY interface, and SPI/I2C host bridge into a single 64-pin QFN IC, eliminating the need for a separate PHY chip and FPGA or ASIC for EtherCAT protocol handling. This integration reduces BOM by approximately 10 to 15 components, shrinks PCB footprint by roughly 30%, and avoids the firmware complexity of implementing EtherCAT slave logic in an FPGA, making it ideal for volume production of distributed I/O and drive amplifier modules.
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| 1000+ | $7.1300 | $7130.00 |
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